It's black when it's not in use, it's red when it's in use, and it's grey when you're done using it. What can this be??

It's the front part of a Matchstick, which is black initially( when not in use, i.e.,not lit), red when burning which finally is transformed into grey ashes when burnt (when done using it).

Posted by Ravi Raja on 2003-02-06 01:52:07